package com.smart.parking.controller.play;

import cn.hutool.json.JSONObject;
import com.alibaba.fastjson.JSON;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradePagePayRequest;
import com.alipay.api.request.AlipayTradePrecreateRequest;
import com.alipay.api.request.AlipayTradeRefundRequest;
import com.alipay.api.response.AlipayTradePrecreateResponse;
import com.alipay.api.response.AlipayTradeRefundResponse;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.smart.parking.config.AliPayConfig;
import com.smart.parking.config.Result;
import com.smart.parking.param.AliPay;
import com.smart.parking.param.AliPayParam;
import com.smart.parking.service.VehicleService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

@RestController
@RequestMapping("/alipay")
public class AliPayController {

    @Resource
    private AliPayConfig aliPayConfig;


    @Autowired
    private VehicleService vehicleService;

    //定义日志
    private final static Logger log = LoggerFactory.getLogger(AliPayController.class);


    //支付的接口
    @GetMapping("/pay") // &subject=xxx&traceNo=xxx&totalAmount=xxx
    public void pay(AliPay aliPay, HttpServletResponse httpResponse) throws IOException {
        // 1. 创建Client，通用SDK提供的Client，负责调用支付宝的API
        AlipayClient alipayClient = new DefaultAlipayClient(AliPayParam.GATEWAY_URL, aliPayConfig.getAppId(),
                aliPayConfig.getAppPrivateKey(), AliPayParam.FORMAT, AliPayParam.CHARSET, aliPayConfig.getAlipayPublicKey(), AliPayParam.SIGN_TYPE);

        // 2. 创建 Request并设置Request参数
        AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();  // 发送请求的 Request类
        request.setNotifyUrl(aliPayConfig.getNotifyUrl());
        Map<String, Object> map = new HashMap<>();
        map.put("out_trade_no", aliPay.getTraceNo());  // 我们自己生成的订单编号
        map.put("total_amount", aliPay.getTotalAmount()); // 订单的总金额
        map.put("subject", aliPay.getSubject());   // 支付的名称
        map.put("product_code", "FAST_INSTANT_TRADE_PAY");  // 固定配置
        String s = new ObjectMapper().writeValueAsString(map);
        request.setBizContent(s);

        // 执行请求，拿到响应的结果，返回给浏览器
        String form = "";
        try {
            form = alipayClient.pageExecute(request).getBody(); // 调用SDK生成表单
        } catch (AlipayApiException e) {
            e.printStackTrace();
        }
        httpResponse.setContentType("text/html;charset=" + AliPayParam.CHARSET);
        httpResponse.getWriter().write(form);// 直接将完整的表单html输出到页面
        httpResponse.getWriter().flush();
        httpResponse.getWriter().close();
    }

    //查询支付状态
    @GetMapping("/queryPayStatus")
    public Result queryPayStatus(@RequestParam("chargeID") Long chargeID) {
        boolean flag = vehicleService.selectPayment(chargeID);
        if (flag) {
            return Result.ok("已支付!").put("state", 1);
        }
        return Result.ok("未支付!").put("state", 0);
    }

    //回调接口
    @PostMapping("/notify")  // 注意这里必须是POST接口
    public String payNotify(HttpServletRequest request) throws Exception {
        if (request.getParameter("trade_status").equals("TRADE_SUCCESS")) {
            System.out.println("=========支付宝异步回调========");
            Map<String, String> params = new HashMap<>();
            Map<String, String[]> requestParams = request.getParameterMap();
            for (String name : requestParams.keySet()) {
                params.put(name, request.getParameter(name));
                // System.out.println(name + " = " + request.getParameter(name));
            }
            String tradeNo = params.get("out_trade_no");
            String gmtPayment = params.get("gmt_payment");
            String alipayTradeNo = params.get("trade_no");
            String sign = params.get("sign");
            String content = AlipaySignature.getSignCheckContentV1(params);
            boolean checkSignature = AlipaySignature.rsa256CheckContent(content, sign, aliPayConfig.getAlipayPublicKey(), "UTF-8"); // 验证签名
            // 支付宝验签
            if (checkSignature) {
                // 验签通过
                System.out.println("交易名称: " + params.get("subject"));
                System.out.println("交易状态: " + params.get("trade_status"));
                System.out.println("支付宝交易凭证号: " + params.get("trade_no"));
                System.out.println("商户订单号: " + params.get("out_trade_no"));
                System.out.println("交易金额: " + params.get("total_amount"));
                System.out.println("买家在支付宝唯一id: " + params.get("buyer_id"));
                System.out.println("买家付款时间: " + params.get("gmt_payment"));
                System.out.println("买家付款金额: " + params.get("buyer_pay_amount"));
                // 更新订单未已支付
                vehicleService.updateChargePlay(Long.valueOf(tradeNo));
            }
        }
        return "success";
    }

    @RequestMapping("/pay2")
    @ResponseBody
    public Result pay2(AliPay aliPay) throws Exception {
        //接口模拟数据

        AlipayClient alipayClient = new DefaultAlipayClient(AliPayParam.GATEWAY_URL, aliPayConfig.getAppId(),
                aliPayConfig.getAppPrivateKey(), AliPayParam.FORMAT, AliPayParam.CHARSET, aliPayConfig.getAlipayPublicKey(), AliPayParam.SIGN_TYPE);
        //扫码支付使用AlipayTradePrecreateRequest传参，下面调用的是execute方法
        AlipayTradePrecreateRequest precreateRequest = new AlipayTradePrecreateRequest();
//        precreateRequest.setReturnUrl("http://localhost:8080/alipay/return");
        precreateRequest.setNotifyUrl(aliPayConfig.getNotifyUrl());
        Map<String, Object> map = new HashMap<>();
        map.put("out_trade_no", aliPay.getTraceNo());  // 我们自己生成的订单编号
        map.put("total_amount", aliPay.getTotalAmount()); // 订单的总金额
        map.put("subject", aliPay.getSubject());   // 支付的名称
//        map.put("product_code", "FAST_INSTANT_TRADE_PAY");  // 固定配置
        String s = new ObjectMapper().writeValueAsString(map);
        precreateRequest.setBizContent(s);
        log.info("封装请求支付宝付款参数为:{}", JSON.toJSONString(precreateRequest));
        /*
         *         Map<String, Object> map = new HashMap<>();
         *         map.put("out_trade_no", aliPay.getTraceNo());  // 我们自己生成的订单编号
         *         map.put("total_amount", aliPay.getTotalAmount()); // 订单的总金额
         *         map.put("subject", aliPay.getSubject());   // 支付的名称
         *         map.put("product_code", "FAST_INSTANT_TRADE_PAY");  // 固定配置
         *         String s = new ObjectMapper().writeValueAsString(map);
         *         request.setBizContent(s);
         */

        AlipayTradePrecreateResponse response = null;
        try {
            response = alipayClient.execute(precreateRequest);
        } catch (AlipayApiException e) {
            throw new Exception(String.format("下单失败 错误代码:[%s], 错误信息:[%s]", e.getErrCode(), e.getErrMsg()));
        }
        log.info("AlipayTradePrecreateResponse = {}", response.getBody());

        /*
        {
        "code": "10000",
        "msg": "Success",
        "out_trade_no": "815259610498863104",
        "qr_code": "https://qr.alipay.com/bax09455sq1umiufbxf4503e"
        }
        */
        if (!response.isSuccess()) {
            throw new Exception(String.format("下单失败 错误代码:[%s], 错误信息:[%s]", response.getCode(), response.getMsg()));
        }
        // TODO 下单记录保存入库
        // 返回结果，主要是返回 qr_code，前端根据 qr_code 进行重定向或者生成二维码引导用户支付
        JSONObject jsonObject = new JSONObject();
        //支付宝响应的订单号
        String outTradeNo = response.getOutTradeNo();
        jsonObject.putOpt("outTradeNo", outTradeNo);
        //二维码地址，页面使用二维码工具显示出来就可以了
        jsonObject.putOpt("qrCode", response.getQrCode());
        return Result.ok().put("param", jsonObject);
    }

    @GetMapping("/return")
    public String returnPay(AliPay aliPay) throws AlipayApiException, JsonProcessingException {
//        7天无理由退款
//        Orders orders = ordersMapper.getByNo(aliPay.getTraceNo());
//        if (orders != null) {
//            // hutool工具类，判断时间间隔
//            long between = DateUtil.between(DateUtil.parseDateTime(orders.getPaymentTime()), DateUtil.parseDateTime(now), DateUnit.DAY);
//            if (between > 7) {
//                return Result.error("-1", "该订单已超过7天，不支持退款");
//            }
//        }
        // 1. 创建Client，通用SDK提供的Client，负责调用支付宝的API
        AlipayClient alipayClient = new DefaultAlipayClient(AliPayParam.GATEWAY_URL,
                aliPayConfig.getAppId(), aliPayConfig.getAppPrivateKey(), AliPayParam.FORMAT, AliPayParam.CHARSET,
                aliPayConfig.getAlipayPublicKey(), AliPayParam.SIGN_TYPE);
        // 2. 创建 Request，设置参数
        AlipayTradeRefundRequest request = new AlipayTradeRefundRequest();
        Map<String, Object> map = new HashMap<>();
        map.put("trade_no", aliPay.getAlipayTraceNo());
        map.put("refund_amount", aliPay.getTotalAmount());
        map.put("out_request_no", aliPay.getTraceNo());
        // 返回参数选项，按需传入
        //JSONArray queryOptions = new JSONArray();
        //queryOptions.add("refund_detail_item_list");
        //bizContent.put("query_options", queryOptions);
        String s = new ObjectMapper().writeValueAsString(map);
        request.setBizContent(s);
        // 3. 执行请求
        AlipayTradeRefundResponse response = alipayClient.execute(request);
        if (response.isSuccess()) {  // 退款成功，isSuccess 为true
            System.out.println("调用成功");
            // 4. 更新数据库状态
            //ordersMapper.updatePayState(aliPay.getTraceNo(), "已退款", now);
            return "成功";
        } else {   // 退款失败，isSuccess 为false
            System.out.println(response.getBody());
            return "失败";
        }
    }
}
